5 Chesapeake Bay Retriever- Flickr - Will Thomas.png

Flickr/Will Thomas CC by 2.0

If the Siberian Husky is the marathon runner of dogs, then the Chesapeake Bay Retriever is the Olympic swimmer. Originally bred along the coast of—you guessed it—The Chesapeake Bay for hunting waterfowl, this brawny breed's swimming abilities are on par with, say, Michael Phelps. The AKC also considers it an exceptionally happy breed. Must be all those exercise endorphins…